<?php $max = 13; // The last number $cols = 4; // The point at which a new line will start $arr = array_chunk(range(1, $max), $cols); // Magic ;D // Print the data. foreach ($arr as $key => $row) { // In case we are wrapping on the far side, this will prevent the row from // starting on the left. $row = array_pad($row, $cols, ' '); // This will reverse every other row $row = ($key % 2 === 0) ? $row : array_reverse($row); foreach ($row as $value) { $value = str_pad($value, strlen($max), ' ', STR_PAD_LEFT); echo "{$value} "; } echo "\n"; }
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